GetContentType = Nullpointer, "rebuild" message finally works... *confuse*

Question

Hi,
i just got a question, not really a problem.
So let me try to explain.
We receive mails from a groupwise server. Sometimes (not every mail, but some, could not find out which) i am getting a nullpointer if i ask for the contentType.
If i now read the message, write it back .. the rest will work fine. If i don�t do so, i also get a nullpointer calling getRawInputStream.
.. but let the source explain :)
try {
     contentTypeStr = emailMessage.getContentType();
} catch (Exception e) {
     emailMessage = (MimeMessage)dumpMessage((Message)emailMessage);in my testscenario, dumpmessage just does something like:
(emailMessage is NOT changed)
//          test
          File file2 = File.createTempFile("dummy", ".eml");
          FileOutputStream fileOutputStream2 = new FileOutputStream(file2);
          emailMessage.writeTo(fileOutputStream2);
          fileOutputStream2.flush();
          fileOutputStream2.close();
          source = new FileInputStream(file2);
          message = new MimeMessage(session, source);
          return message;
//          testAnd now i can finally read the mail properly... no more nullpointer..
may anybody explain that to me?
thx in advance

Answer 1

I assume you're using IMAP.
This is usually caused by a bug in the server. Please post a protocol trace
showing the problem, or send it to me at [email protected]
And make sure you have installed all the latest patches for GroupWise.